statistic homework. serious inquiries only

STAT 1181 Project 1

Due: Wed 30 Sep 2015

Instructions:  You may do this project in pairs. If you do so, hand in only 1 paper with both your names on it.  Project must be typed, double spaced.  Your answers should be complete but concise. The technical scope and depth of your answer

should be in line with our class discussions or text book. Excluding the article, the report should take approximately 3 - 4 pages.

 The number of marks allotted to each question is indicated in [ ]

1. Find a report from a study that used data. You may use reports from the print media (magazine, newspaper, journals, newsletter, etc.), or the Internet. Find a study with at least 4 variables. Paste the article to your project. If it’s from the Internet, include a printout. Remember to document where the report is published (eg. name and issue date of magazine, URL of web page). You should also try to find out who conducted the study or collected the data. [2 marks]

2. Identify the objective/aim of the study. [2 marks]

3. Identify the population of interest in this study. Be specific. [2 marks]

4. Identify a parameter(s) of interest. [2 marks]

5. What sampling frame and design did the researcher use, and how large was the sample? If this information was omitted from the article, describe the sampling design that you would use. Discuss your choice (eg., if you choose a stratified random sample, what would you use as the stratifying variable, and why?) What are its strengths? And what are its limitations? Discuss the scientific as well as the practical concerns. If this is a census result, identify some possible sources of error and what steps you would take to minimize them. If it is a survey, discuss issues relating to non-response and response bias. [5 marks]

6. Are there any ethical issues involved the study. If yes, briefly explain. If no, explain why not. If this issue is not mentioned in the article, discuss some ethical issues that might have arisen and how you would have dealt with them. [3 marks]

7. Identify 4 variables used in the study. Clearly indicate the scale of measurement (nominal, ordinal, or interval) used in each, its unit or categories where applicable. If the article has more than 4 variables, select the 4 that are of greatest interest. [4 marks]

8. Summarize the result of the study. And comment on how well it achieves the objective you describe in #2. [3 marks]

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